160316-N-QA919-117 ARCTIC CIRCLE (March 15, 2016) Rear Adm. Jeffrey Trussler, left, commander of the Undersea Warfighting Development Center, Rear Adm. Fritz Roegge, Vice Adm. Mark Norman, Commander, Royal Canadian Navy, greet Larry Estrada, director Arctic Submarine Laboratory, at Ice Camp Sargo during Ice Exercise (ICEX) 2016. ICEX 2016 is a five-week exercise designed to research, test, and evaluate operational capabilities in the region. ICEX 2016 allows the U.S. Navy to assess operational readiness in the Arctic, increase experience in the region, advance understanding of the Arctic environment, and develop partnerships and collaborative efforts. (U.S. Navy photo by Mass Communication Specialist 2nd Class Tyler Thompson)